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Question: Let X be the number of-days in month picked at random from the 12 months of a year (not a leap year).
a) Display the distribution of X in a table, and calculate E(X) and SD(X).
b) Repeat with X the number of days in the month containing a day picked at random from the 365 days of 1991.
1.the daily flow rate of contaminant from an industrial plant is modeled by a normal random variable with a mean value
You want a good guess of the professor's true height (or at least a good guess of how tall the students think the professor is). How would you summarize these data? Why? What might explain guesses as low as 56"?
Is this sample sufficient to conclude that the eye spots have a significant influence on the birds behavior? Use a two tail test with alpha =.05. Compute the estimated Cohen's d to measure the size of the treatment.
Small country: A country in which import demand is larger than domestic demand. So what is the benefits of large country and small country?
what is confidence interval in statistics? please give an example.could anyone help me this
Using the graph, estimate the predicted price for a home with 3000 square feet.Use the equation to predict the price for a home with 3000 square feet.
Specify the appropriate null and alternative hypotheses if we wish to test the research hypothesis that the mean GHQ score for all employed men exceeds 10.
The researcher has the idea that listening to hard rock music can directly influence one's perception of the world. The professor randomly selects a group.
The probability of an offender having a speeding ticket is 35%, having a parking ticket is 44%, having both is 12%. What is the probability of an offender having either a speeding ticket or a parking ticket or both?
The Quality Control Department and Product Improvement Team at Aventis and the probability that a person did receive the vaccine and still got the flu
Four percent of DVD players manufactured by an electronics company are defective. Suppose six DVD players are randomly selected from the production line. Each DVD player is determined to be defective or non-defective.
(1) Make the entry to record the partial refunding. Assume Jenks Co. makes reversing entries when appropriate. (2) Prepare the adjusting entry at December 31, assuming straight-line amortization of the discount
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